Mount Tyndall· Eastern Sierra· conditions updating now
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Mount Tyndall

Peak · 14,025 ft · Eastern Sierra corridor

Mount Tyndall is a 14,025-foot peak in California's Eastern Sierra corridor, accessed via the Inyo National Forest. The approach crosses alpine terrain above 12,000 feet with significant avalanche exposure and sustained wind.

Today
16
NoGo Score · Go · excellent
Temp
23°F
Wind
13 mph
Vis
16 mi
Precip
0.00"
AQI
40
Cloud
0%

Wind funnels steadily across the exposed ridges and approaches; the 30-day average is 13 mph, but gusts exceed 40 mph regularly. Morning hours offer calmer conditions before thermal winds climb. Afternoon brings sustained pressure and turbulence off the high desert valleys to the east.

Over the last 30 days, Mount Tyndall has averaged a NoGo Score of 36.0 with temperatures around 27 degrees Fahrenheit and 13 mph average wind. The week ahead shows typical spring volatility at this elevation: snowpack is still substantial, avalanche conditions remain variable, and afternoon wind is nearly certain. Plan for early departures and monitor the Eastern Sierra Avalanche Center forecasts before any approach.

30 days back / 7 days forward

NoGo Score
avg 13 · today 13
NoGo Score trend for Mount Tyndall: 30-day average 13, range 10 to 17; 6 days of forecastLine chart showing nogo score over 31 historical days and 6 days of forecast.
30-day average 13 (excellent); range 10 on Oct 1 to 17 on Oct 11. 7-day forecast trends in line with the historical average.
Wind
avg 13 · today 9mph
Wind speed trend for Mount Tyndall: 30-day average 13 mph, peak 25 mph on Oct 10Line chart showing wind over 31 historical days and 6 days of forecast.
30-day average 13 mph; peak 25 mph on Oct 10. Week ahead peaks at 9 mph on Oct 15.
Temperature
avg 47 · today 32°F
Temperature trend for Mount Tyndall: 30-day average 47°F, range 29 to 54°FLine chart showing temperature over 31 historical days and 6 days of forecast.
30-day average 47°F; range 29 (Oct 12) to 54 (Sep 13). Trending cooler.
Crowding
avg 3 · today 1
Crowding trend for Mount Tyndall: typically quietLine chart showing crowding over 31 historical days and 6 days of forecast.
Typically quiet (avg 3); peak 5 on Sep 13.

Today's score by factor

Weather26
Crowding4
Avalanche10
Fire0
Traffic—
Air quality8
Trails20
Seasonality19

About Mount Tyndall

Mount Tyndall sits in the high Sierra crest northeast of Independence, California, on Highway 395. The peak is accessible via the Symmes Creek drainage and the high-altitude approach from the Inyo National Forest. Most parties approach from the town of Lone Pine, a 45-minute drive south on Highway 395 from the Big Pine trailhead area. The peak stands isolated at 14,025 feet in terrain that remains snow-covered well into late spring. The final approach crosses glacier-fed creeks and exposed granite slopes where snow instability is a critical factor.

Spring and early summer are the dominant climbing seasons, though the 30-day average temperature of 27 degrees and sustained 13 mph average wind reflect the harsh conditions typical of this elevation through April and May. Nighttime temperatures dip to freezing; daytime highs rarely exceed 35 degrees. Wind gusts reach 49 mph regularly, making afternoon hours dangerous for exposed ridges. Snowpack is deep and requires avalanche awareness; cornices form along the crest by late April. Early morning departures before 8 a.m. are essential to avoid afternoon wind and thermal instability. Crowding remains low year-round due to the technical approach and sustained avalanche hazard.

Mount Tyndall is suited for experienced mountaineers with solid snow climbing skills and avalanche education. Solo travel is discouraged; rope teams and avalanche rescue gear are standard. The low base popularity of 0.2 reflects the terrain's technical demands and the real objective hazard of the approach. Most parties are self-sufficient and experienced in self-rescue. Summer ascents are rare due to ongoing snowpack; the brief window of stable conditions occurs during limited periods in late spring when the snow is consolidated but the high-altitude wind remains relentless. Plan 2 to 3 days for the round trip to account for acclimatization and weather variability.

Mount Tyndall's neighbour, Mount Whitney, lies to the south and attracts far more traffic; Tyndall remains isolated and severe by comparison. The Eastern Sierra Avalanche Center covers this zone and should be consulted before any trip. Nearby peaks like Mount Langley and Mounts Muir and Darwin offer similar high-Sierra experience with marginally lower avalanche exposure. The approach to Tyndall is a genuine alpine mountaineering objective, not a summer hiking destination; winter and spring ascents require full winter gear and constant evaluation of snow stability.

Best times to visit Mount Tyndall

Best day
Tuesday or Wednesday morning before dawn
Best season
Late May to early June
Watch for
Afternoon wind gusts, snowpack instability, corniced ridges

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